Here are some images of the 42037 mod to show the inner changes:
And some examples of the damage you can see after some moderate offroading – Lego is clearly not made for this:
Lego Technic 42037 Formula Off-Roader RC mod – detailed images
Here are some images of the 42037 mod to show the inner changes:
And some examples of the damage you can see after some moderate offroading – Lego is clearly not made for this: